| Earthquake Details | Seismogram Explanation |
|---|---|
| Location: Tonga | Pdiff-wave: not verified |
| Date: March 30 2025 | Sdiff-wave: not verified |
| Time: 12:18:43 UTC; 7:18:43 am CST | The vertical axis is in units of displacement in centimeters. |
| Latitude: 20.42 S | The horizontal axis is in units of time in seconds. |
| Longitude: 173.77 W | The beginning of the file is the origin of the event. |
| Magnitude: 7.1 Mw | |
| Depth: 23.5 km | |
| Distance: 100.90 degrees (~6,830 miles from Milwaukee) |